Being based on the PS4 architecture, I hope there won't be many remasters of PS4 games that were remasters of PS3 games. The the PS5 itself sounds promising though...
its BC, boost mode probably carries over, so probably not as many considering how big digital is these days.
That said, I can see the potential for PS5 paid patches, that is if you want an upgraded PS5 version of a PS4 game you just pay for the update myself. just bouncing an idea